Coralyn used her store card to purchase a $9,500 bedroom set from the furniture warehouse. For every 30 days the amount is not paid in full, 8% monthly interest is accumulated. Coralyn paid $3,000 for the set up front, and then charged the rest to the card. How much will she pay in interest for the first month if she does not pay off the set? $520 $240 O $760 $1,000